CUET Preparation Today
CUET
-- Mathematics - Section B1
Application of Integrals
A cuboidal metal of dimensions 44 cm × 30 cm × 15 cm was melted and cast into a cylinder of height 28 cm. Find its radius.
20 cm
15 cm
10 cm
18 cm
Volume of cuboid = Volume of cylinder
$⇒lbh=πr^2h⇒r^2=\frac{44× 30× 15× 7}{22×28}$
∴ r = 15 cm